Improved coke-cake mould



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BENJAMIN WITHERELIJ, OF CHARLESTCWN, MASSACHUSETTS.

Letters Patent No. 71,831, dated December 3, 1867.

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'.lO ALL PERSONS 'IO WHOM THESE PRESENTS MAY COME:

Be it known that I, BENJAMIN WITHERELL, of Charlestown, in the county of Middlesex, and State of Massachusetts, have invented an improved Corn-Cake Mould; and I do hereby declare the same to be fully described in the following specification, and represented n the accompanying drawings, of which- Figure 1 denotes a transverse section of thc mould.

Figure 2, au under side view of its platen.

Figure 3, a top view of its bed, and the movable frame thereof.

In the drawings, A denotes the bed, and B the movable frame thereof, the said frame being square, and fitted uponthe bed formed in'manner as represented. The platen C is composedo'fa'shallow box, and contains two series of adjustablebar knives D D D, Snc., E E E, &c., and a series of square followers or plungers, F -F F, 85e. The knives of each of the series are arranged'parallel to each other, at equal distances apart, and they cross those of the other 'series at right angles. A square flange, G, fixed in and projecting from the platen C, surrounds the series of plungers and adjustable knives. Each knife of one series is made as shown in side view in Figure 4; each knife of the other series being formed as shown in side elevation in Figure 5. These figures exhibit the knives as made with notches a b, such being in order to enable the knives to intersect one another, and either knife to be adjusted independently of the others. VEach knife has two male screws, c c, projected from its opposite ends, and through vertical slots d ci made in the opposite sides of the platen, there being nuts,

d d screwed on such screws, in order to hold the knife in its proper position in the platen. The several follow-A ers F are arranged within the square spaces between the knives, each follower being-supported on or against a helical spring, e, and being provided with a `shan'lr,j`, to extend through the spring and the top plate g of the platen. The object vof having the knives adjustable with reference to the plane of the outer edge of the ilange Gis first to adapt them to groove or score the moulded corn-cake to the depth requircd,'and also to enable someof'the knives to make grooves or cuts deeper than those made by the others, this latter being necessary to enable the sheet of corn-cake triade to be'cut into lesser sheets, each containing two or more blocks or sections made between and by all the knives.

In using this mould, a mass of the composition of parched corn and molasses, su'lcient to fill it, is to be placed within the frame B when on the base-plate A. Next the platen, with its knives and followers, is to be placed over the mass, so as to cause theilange G to pass into the frame B. Pressure is to be applied to the platen to force it down upon the mass and consolidate it, and cause the several knives to enter it. On raising the platen of the mould the several followers will press the mass out of contact with the knives, and leave it on the bed-plate.

I am aware that corn-cake moulds have been made with a single series of parallel and stationary knives,

and with a series of long bars or followers arranged betweenthcm; -therefore I do not claim such. My mould diers therefrom, inasmuch as it has two series of adjustable knives, those of cach series being parallel to each other, and arranged to cross those of the other series at right angles, and havingfollowers disposedwithin the spaces, made between such two series of knives. The common moulds, as above alluded to, require their platens to be turned around 4ninety degrees aft-er an impression, in order to form the sheet of corn-'cake with grooves at right angles to those rst made by the knives; but with my improved mould this is not necessary,

I am also aware that moulds for making square crackers have been made with knives set in squares, and therefore I do not claim such; but they have not been made separately adjustable with reference to the outer boundary or flange of the whole, as are the knives of my mould.

What, therefore, I claim as my invention, is-

The combination and arrangement of the' two series of adjustable knives with each other, the flange G, the

platen and its, series of followers, provided with springs, as specified, the whole being to operate with the bed A and the frame B thereof, substantially in manner and for Athe purpose as hereinbefore explained.

marinara WITHERELL.

Witnesses:

R. H. EDDY, F. P. HALE, Jr. 

